Cattle-guard.



- of the tracks A.

' WILLIS L. FLEWELLIN AND ROBERT W. PITTS, OF BUFFALO GAP, SOUTH DAKOTA.

CATTLE-GUARD.

Specification of Letters Patent.

Application filed October 10, 1907.

1 atented Aug. 11, 1908.

Serial No. 396,835.

To allwhom it may concern:

Be it known that we, \VILLIs L. FLEWEL- 1.1.x and ROBERT W. Prr'rs,citizens of the United States, residing at Buffalo Ga in the county ofCuster and State of South lDakota, have invented certain new and usefulImrovements in Cattle-Guards, of which the ollowing is a specification.

This invention relates to cattle guards, and has for its object toprovide an improved structure of such guard for railways, and to providean exceedingly simple and inexpensive guard capable of eilectlvelypreventing cattle and other animals passing over it.

In the drawings forming a orti'on of this specification, and in whichlike umeralsof reference indicate similar parts in the several views,Figure 1 is a top plan view of a railway track showing the arrangementof our cattle guard at bot-h sides of a crossing, Fig. 2 is a section onthe line 2-2 of Fig. 1, Fig. 3 is a sectional view on the line 33 ofFig. 1, Fig. 1 is a perspective view of one of the rollers, Fig. 5 is aperspective View of one of the bars composing the frame, Fig. 6 is adetail perspective view of one of the pins for the rollers.

Referring now to the drawings, there is shown a cattle guard whichconsists of a frame 10 which is arranged between the tracks A, of arailway B, and this guard further consists of the frames 11 and 12respectively, which are arranged at the outer sides The frames 10comprise a plurality of vertically extending bars 13 and 14 which arearranged longitudinally of the tracks A. The bars 13 are arrangedadjacent the inner sides of the tracks A and the bars 14 are arrangedbetween the bars 13 and at the center of the railway ties C, as shown,and at the outer ends of frames 11, and 12. Each of the bars 13 and 14is provided with a vertically extending web portion 15, and at the lowerends, these bars are provided with laterally extending flanges 16.Vertically extending passages 17 are formed in the flanges 16 for thereception of fastening de vices 17 ,"and by means of these fasteningdevices, it will be seen that the guard may be securely held to the tiesC.

In the web portions of each of the bars 13 and 14, there are shownhorizontally extending passages 18, and arranged between the bars 13 and14, there are shown a series of parallel spaced rollers 19 which extendI crosswise of the tracks A, and these rollers are provided withtrunnions 20 which are arwhich are formed in the bars 13 and 14.- Itwill thus be seen that the rollers are free to revolve between the bars13 and 14. Threaded passages 22 are formed in the rollers 19, andarranged in these passages there are shown the threaded ends 23 of pins24, and these pins have their outer ends pointed as shown at 25.

The longitudinally extending bars 13 and 14 have their upper edgesserrated as shown at 26, and these serrated edges thus provide upwardlyextending spurs 27 which arearranged adjacent the ends of the rollers 19and in line therewith, and the spurs 28 which lie between the spacedrollers. The upper edges of the spurs are beveled as shown at 29 to forma knife edge 30.

The frames 11 and 12 are similar to the frame 10, but consist of but twolongitudinally extending bars 13 and 14 respectively, and these bars areidentical with the bars, 13 and 14, and it is thought that a descriptionthereof is unnecessar Rollers 19' are journaled between these ars in amanner similar to that shown in the frame 10.

From the construction described, it will be seen that the rollers 19 and19' are both of equal length, and the bars which are used in theconstruction of the frame 10 being identical with those shown in theframes 11 and 12, it will be seen that the frames 10, 11 and 12 may beformed of the same material. It will further be seen, that theconstruction shown provides a strong and durable cattle guard which maybe shipped with its parts in sections, and which may be easily andquickly set up at its place of use.

In use, it will be seen that if an attempt should be made by cattle orother animals to travel from the crossing to a point longitudinally ofthe tracks A, they would come in contact with the guards at either sideof the crossing, and in the movement of the cattle or animals it will beseen that the rollers will revolve, and the pins which are carriedthereby will inflict sul'hcient pain and prevent further travel of theanima s.

\Vhat is claimed is:

1. In a cattle guard the combination with longitudinally disposedparallel bars having base flanges and a plurality of vertically disposedspurs at-thelr upper edges, said bars UNITED STAWENT OFFICE. i

ranged in horizontally extending passages 2 l having alining passages,of rollers disposed between said bars, trunnions carried by said rollersand disposed in said passages, and re,

movable pins carried by saidmoll ers.

2. The combination with revolumfin'ced rollers having removable ins, andtrunnions carried at the ends of sai rollers, of a, frame comprisinglongitiulinally disposed parallel bars having base flanges, said barshaving alining )assages in which said trunnions are dispose sharpened surs carried by said bars at their upper ec ges a'nd located between theroliers at their ends.

In testimony whereof we aflix onr signatures, in presenceof twowitnesses.

' 'ILLIS L. FLEWELLI'N. ROBERT W. PITTS.

W'itnesses as to the signature of \Villis L.

